glyoxylic acid
noun
gly·ox·yl·ic acid
| \ ˌglī-(ˌ)äk-ˈsil-ik-
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Medical Definition of glyoxylic acid
: a syrupy or crystalline aldehyde acid C2H2O3 or C2H4O4 that is an important intermediate compound in plant and animal metabolism and occurs especially in unripe fruit